banner day
A day marked or characterized by great success or good fortune. That's the fourth touchdown pass so far for the rookie quarterback. He's really having a banner day for the Jets. I'll never forget the day my parents said I could have their old Mazda hatchback. That was a banner day for me. It was really a banner day—I found out I got A's on all of my exams, and I was picked to do that summer internship!
under the banner (of) (something)
1. Identifying oneself with a particular title, slogan, etc. Before they officially formed their nonprofit as you know it today, they went under the banner "Green Jobs for Good."
2. With the stated support for or of something. This usage is always followed by "of (something)." We're holding the rally under the banner of equality and tolerance. All are welcome.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.